A vote for McCain is a vote against - well you know the rest.
Some background. As far as I can tell, the amendment that McCain voted against was an amendment to S.Con.Res.18 of March 17 of 2005.
And how about the irony here? It was sponsored by Senator Clinton. The stated purpose:
To expand access to preventive health care services that reduce unintended pregnancy (including teen pregnancy), reduce the number of abortions, and improve access to women's health care.And Senator McCain voted against it.
He's got a rating of 0 (aka "Zero," "Zilch," "Nada," and the ever-popular "Lowest Score Possible") from NARAL for the last six years running.